l = open(r'D:\Python\chengjibiao.txt', 'w', encoding="utf8")
l.write('姓名\t成绩\n')
l.write('李超群\t98\n')
l.close()
print('完成')


a = open(r'D:\Python\chengjibiao.txt', 'r', encoding="utf8")
print(a.read())